challenges in the snowden -- with the snowden revelations, and mike was very effective, sort of our unofficial public spokesman. i thought i should follow that, that model. i will say this is a very individual personal decision. what jim did is circumspect as he has been, is classic jim mattis. and i'll never forget the scene when he and the president elect were standing on the doorstep there at bedminster and i had two thoughts. thank god that jim is going to take this job on as secretary of defense, but it won't last. jim is a man of principle. and he stayed as he said. he did as well as he could for as long as he could. truth in advertising, he's a friend and someone i greatly admire. >> on the subject of it won't last, in the same interview we're talking about, general